DI Optical\' s eg1 prismatic do sight provides a increased accuracy and rapid target acquisition. The shaded 30mm lens with rubber hood provides a wide and crystal clear field of view. The eg1 is unsurpassed in ruggedness and reliability and its easy grip rotary switch can be conveniently operated with a gloved hand. The eg1 provides 1.5 Moa dot size with 15 brightness setting including 11 daytime and 4 nighttime and lasts more than 5000 hours at mid brightness setting. It meets mil-std810g environment testing.